RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4541 locations in the last 30 days (4688 reports) · Last sighting yesterday

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/2025926 W 32ND PLBridgeport11Completed10 daysInternetCity 311
9/14/20251415 W CATALPA AVEEdgewater48Completed2 daysMobile DeviceCity 311
9/14/20255048 N WINCHESTER AVELincoln Square40Completed9 daysInternetCity 311
9/14/20253640 N SEELEY AVENorth Center47Completed11 daysInternetCity 311
9/14/20259204 S DREXEL AVEBurnside8Completed9 daysPhone CallCity 311
9/14/20259204 S DREXEL AVEBurnside8Completed11 daysPhone CallCity 311
9/14/20251532 N ROCKWELL STWest Town26Completed12 daysPhone CallCity 311
9/14/20251441 W FLETCHER STLake View32Completed11 daysInternetCity 311
9/14/20257822 W ARDMORE AVENorwood Park41Completed10 daysInternetCity 311
9/14/20251442 W FLETCHER STLake View32Completed11 daysInternetCity 311
9/14/2025322 S GREEN STNear West Side34Completed2 daysMobile DeviceCity 311
9/14/20254837 N CENTRAL AVEJefferson Park45Completed10 daysMobile DeviceCity 311
9/14/20252014 W BIRCHWOOD AVERogers Park49Completed9 daysPhone CallCity 311
9/14/20252012 W BIRCHWOOD AVERogers Park49Completed9 daysPhone CallCity 311
9/14/20252018 W BIRCHWOOD AVERogers Park49Completed9 daysPhone CallCity 311
9/14/2025699 S MCCORMICK PL BUSWAYLoop42Completed2 daysInternetCity 311
9/14/20255902 N NEWBURG AVENorwood Park41Completed10 daysInternetCity 311
9/14/2025225 W 25TH PLArmour Square11Completed10 daysMobile DeviceCity 311
9/14/20253149 W LELAND AVEAlbany Park33Completed10 daysMobile DeviceCity 311
9/14/20255131 S GREENWOOD AVEHyde Park5Completed10 daysPhone CallCity 311
9/14/20253740 W 115TH STMount Greenwood19Completed10 daysPhone CallCity 311
9/14/20253673 N ELSTON AVEIrving Park33Completed10 daysMobile DeviceCity 311
9/14/20251731 W 18TH PLLower West Side25Completed10 daysInternetCity 311
9/14/20254140 W OAKDALE AVEAvondale31Completed10 daysInternetCity 311
9/14/20253723 S WALLACE STBridgeport11Completed11 daysMobile DeviceCity 311
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